FFmpeg support

A complete, cross-platform solution to record, convert and stream audio and video.

Detailed introduction: https://www.ffmpeg.org

Install FFmpeg

Download first FFmpeg from here, then install it:

./configure --disable-all --disable-autodetect --disable-podpages --disable-asm --enable-avcodec --enable-avformat --enable-decoders --enable-encoders --enable-demuxers --enable-parsers --enable-protocol='file' --enable-swscale --enable-zlib
make
sudo make install

Add FFmpeg to your project

Add library: FFmpeg (for GCC: -lavformat -lavcodec -lavutil -lswscale -lm -lz -lpthread)

Usage

Enable LV_USE_FFMPEG in lv_conf.h.

See the examples below.

note:: Enable LV_FFMPEG_PLAYER_USE_LV_FS in lv_conf.h if you want to integrate the lvgl file system into FFmpeg.

Events

LV_EVENT_READY Sent when playback is complete and auto-restart is not enabled.

Learn more about Events.

Example

Decode image

#include "../../lv_examples.h"
#if LV_BUILD_EXAMPLES
#if LV_USE_FFMPEG

/**
 * Open an image from a file
 */
void lv_example_ffmpeg_1(void)
{
    lv_obj_t * img = lv_image_create(lv_screen_active());
    lv_image_set_src(img, "./lvgl/examples/libs/ffmpeg/ffmpeg.png");
    lv_obj_center(img);
}

#else

void lv_example_ffmpeg_1(void)
{
    /*TODO
     *fallback for online examples*/

    lv_obj_t * label = lv_label_create(lv_screen_active());
    lv_label_set_text(label, "FFmpeg is not installed");
    lv_obj_center(label);
}

#endif
#endif

Decode video

#include "../../lv_examples.h"
#if LV_BUILD_EXAMPLES
#if LV_USE_FFMPEG

/**
 * Open a video from a file
 */
void lv_example_ffmpeg_2(void)
{
    /*birds.mp4 is downloaded from http://www.videezy.com (Free Stock Footage by Videezy!)
     *https://www.videezy.com/abstract/44864-silhouettes-of-birds-over-the-sunset*/
    lv_obj_t * player = lv_ffmpeg_player_create(lv_screen_active());
    lv_ffmpeg_player_set_src(player, "./lvgl/examples/libs/ffmpeg/birds.mp4");
    lv_ffmpeg_player_set_auto_restart(player, true);
    lv_ffmpeg_player_set_cmd(player, LV_FFMPEG_PLAYER_CMD_START);
    lv_obj_center(player);
}

#else

void lv_example_ffmpeg_2(void)
{
    /*TODO
     *fallback for online examples*/

    lv_obj_t * label = lv_label_create(lv_screen_active());
    lv_label_set_text(label, "FFmpeg is not installed");
    lv_obj_center(label);
}

#endif
#endif

API

lv_ffmpeg.h

lv_types.h